lack of documentation for istanbul instrument

[DepthDeluxe]

Trying to use istanbul instrument for browser unit tests and there isn't enough information for me to figure out what to do. After I instrument the browser code, what command do I run to get a coverage.json?

[DepthDeluxe]

ok figured out what I was missing, the instrumented code writes to global._coverage_ in node or window._coverage_ browser side. Perhaps this could be mentioned under the instrument explanation?